Packaging container



Sept. 13, 1966 J- H. VINEBERG 3,272,419

PACKAGING CONTAINER Filed Sept. 28, 1964 I 1 v CNI'OR v PATENT AGENTUnited States Patent 3,272,419 PACKAGING C(BNTAINER Joseph H. Vineherg,235 Somerset St. W., @ttawa, Ontario, Qanada Filed Sept. 28, 1964, Ser.No. 399,627 1 Claim. (ill. 229--23) This invention relates to packagingcontainers.

Most packaging and shipping containers, particularly of the corrugatedboard or paperboard type must provide some specific type of closuremeans. This means may comprise a separate member or, in many cases, itcomprises a plurality of flaps foldably connecting to the carton orcontainer blank and adapted to be placed in overlapped and adhesivelysecured relation in order to close the container after it has beenloaded with its contents. These closure means are not only relativelyexpensive but the step of placing them in closure forming condition istime-consuming.

It is an object of this invention to provide a packaging container whichis of simple construction, is subject to convenient loading anderection, and which requires no specific closure device.

The invention resides in the provision of a pair of unitary blanks ofsheet material, each of such blanks consisting of an intermediate paneland a pair of end panels foldably connected to the intermediate panel.Each end panel has a pair of opposed edge portions and an intermediateedge joining the opposed edge portions. At least one notch is providedin each of the opposed edge portions of one of the blanks and each ofthe opposed edge portions of the other of the blanks has at least onetongue thereon for reception in one of the notches. Each of theintermediate edge portions of one of the blanks is engageable with oneof the intermediate edge portions of the other of the blanks.

The invention will be described with reference to the accompanyingdrawing, in which FIGURE 1 is a plan view of a first container formingblank,

FIGURE 2 is a plan view of a second container forming blank,

FIGURE 3 is a perspective view showing the blanks in container formingrelation, and

FIGURE 4 is a perspective view of an erected closed container.

Referring to the drawing, and 11 are a pair of blanks which are employedto form the complete container in accordance with the invention. =Eachblank is lformed from appropriate sheet material such as corrugatedboard, paperboard, plastic composition or the like. Blank 10 comprisesan intermediate panel 12 and end panels 13 foldably connected to panel12 at fold lines 14. It will be observed that each panel is ofrectangular form and the panels are in alignment. Each panel 13 has apair of opposed side edges 14 each of which has a notch 15 therein. Asindicated, the length of each notch is at least the major portion of thelength of the edge portion. Each panel 13 also has a free end edgeportion 16.

Blank 11 comprises an intermediate panel 17 and end panels 18 foldablyconnected to panel 17 along fold lines 19. Each panel of blank 11 isalso of rectangular form and the panels are arranged in alignment. Eachpanel 18 has opposed edge portions 20 each of which is provided with alongitudinally extending tongue 21. The length of each tongue 21 isapproximately equal to the length of each notch 15. Each panel 18 has afree end edge 22.

FIGURE 3 illustrates the assembly of the blanks 10 and 11 with respectto each other. In practice, one of the blanks will be positioned toreceive the contents to be packaged, intermediate panel 12 or 17constituting the bottom wall of the package. With the container contentsplaced on such bottom wall the pair of end panels are folded upwardlyand the other blank folded into U-shaped form, as shown in FIGURE 3. Tocomplete the package, the edge portions of the blanks are arranged, asshown in FIGURE 4, with the tongue 21 disposed in the notches 15 and theedges 16 and 22 in engagement with each other. Thereafter, adhesivecoated strips 23 are applied to hold the meeting edges 16 and 22 infixed relation with respect to each other.

It will be observed that the two complementary blanks form a completecontainer without the use of any specific or separate closure device.Moreover, the employment of interlocking edge portions avoids the needfor overlapping flaps and thus conserves the use of material. Since eachblank is of substantially regular rectangular form, it may be easily andinexpensively produced.

I claim:

A packaging container comprising a pair of unitary blanks of sheetmaterial, each of said blanks consisting of an intermediate panel and apair of end panels foldably connected to said intermediate panel, eachsaid end panel having a pair of opposed edge portions and anintermediate edge portion joining said opposed edge portions, each ofsaid opposed edge portions of one otf said blanks having a notchtherein, each of said opposed edge portions of the other of said blankshaving a tongue thereon for reception in one of said notches, each ofsaid intermediate edge portions of one of said blank being engageblewith one Olf said intermediate edge portions of the other said blank,each said tongue having a length constituting the major portion of thelength of said end portion, each said notch having a lengthapproximately equal to that of said tongue.

References Cited by the Examiner UNITED STATES PATENTS 1,497,713 6/1924Crowell 22923 2,000,922 5/1935 Church 229-8 X 2,315,648 4/1943 Nyden 229s X 2,421,225 5/1947 Stensgaard 229-23 X 2,676,431 4/ 1954. Goldberg.

GEORGE O. RALSTON, Primary Examiner.

